UPDATE: As the deadline expired today, the prosecution dropped this motion which discloses that they searched an attorney’s phone with a warrant.
Because the stuff on this phone is a landmine of attorney-client privilege, they contend, there must be a complicated and lengthy clean room-style process to sort the privileged stuff from non-privileged.
Comey disagrees and wants to challenge the search warrant first.
I strongly suspect they didn’t actually turn over much of anything today, but we shall see.
I think it’s more likely they struggled really hard to find any flattering angle, and this is the best they came up with.